body{
  background-color: darkgoldenrod;
}
h1{
  text-align: center;
}
.erluosi-container{
  position: relative; 
  margin: auto;
  width: 400px;
  height: 400px; 
} 
.erluosi-container .erluosi-main{
  position: absolute;
  left:0px;
  top:0px;
  width:  250px;
  height: 400px;
}
.erluosi-container .erluosi-simple{
  position: absolute;
  left:255px;
  top:0px;
  width:  145px;
  height: 145px;
}
.erluosi-container .erluosi-info{
  position: absolute;
  left:255px;
  top:150px;
  width:  145px;
  height: 145px;
}
.erluosi-container .erluosi-btns{
  position: absolute;
  left:255px;
  top:300px;
  width:  145px;
  height: 100px;
}
/* test */
.erluosi-container{
  border:1px solid black;
}
.erluosi-container .erluosi-main{
  border:1px solid black;
}
.erluosi-container .erluosi-simple{
  border:1px solid black;
}
.erluosi-container .erluosi-info{
  border:1px solid black;
}
.erluosi-container .erluosi-btns{
  border:1px solid black;
}